Description:

[Vehicle Fitment-1]: Compatible with BMW E39 525i 2001-2002 M54 L6 2.5L, 530i 2001-2002 M54 L6 3.0L--Upstream and Downstream. [Vehicle Fitment-2]: Compatible with BMW E39 528i 1999-2000 M52 L6 2.8L--Upstream and Downstream. [Reference Number]: 250-24611, 250-24392, 11781742050, 0258003477, 11781433940, 0258005109. [Specification]: Wire Quantity: 4; Sensor Type: Heated; Mounting Type: Threaded; Connector Gender: Female; Package Quantity: 4x Oxygen Sensor; Packaging Type: Box.